WP-CLI: Save terms command

save-terms-cli.php

<?php
/**
 * Save taxonomy terms.
 *
 * ## OPTIONS
 *
 * <taxonomy>
 * : Taxonomy of terms to be saved.
 *
 * [--dry-run]
 * : Dry run only, no terms will be updated.
 *
 * ## EXAMPLES
 *
 *    wp save terms product_tag run --another="yes"
 */
$save_terms_cmd = function($args, $assoc_args) {

	$tax = $args[0];
	$dry_run = null;

	if( array_key_exists('dry-run', $assoc_args) )
		$dry_run = $assoc_args['dry-run'];

	$args = array(
		'post_type' => 'product',
		'taxonomy' => $tax,
		'post_per_page' => -1
	);

	$terms = get_terms($args);

	if( !empty($terms) && !is_wp_error($terms) ) {

		// Loop through all found terms
		foreach ($terms as $t) :

			echo $t->name . "\n";

			// Only make changes if not a dry run
			if( !$dry_run )
				mp_update_term( $t->term_id, $tax );

		endforeach;

	} else {
		// No taxonomy terms found
		WP_CLI::error( "No $tax terms found.\n" );
	}

	// Closing message
	if(!$dry_run) :
		echo "\n";
		WP_CLI::success( "All $tax terms saved\n" );
	else :
		echo "\n";
		WP_CLI::success( count($terms) . " $tax terms found." );
		WP_CLI::success( "Dry run complete for $tax (Nothing Changed)\n" );
	endif;

};
WP_CLI::add_command( 'save terms', $save_terms_cmd );


/**
 * Function mp_update_term()
 * @param int $t Term ID
 * @param string $tax Taxonomy
 */
function mp_update_term($t, $tax) {
	wp_update_term( $t, $tax );
}